SiteServer-CMS/SiteServer.Utils/PathUtils.cs

using System.IO;
using System.Web;
using System.Text.RegularExpressions;
using System;
using System.Linq;
using SiteServer.Utils.Enumerations;

namespace SiteServer.Utils
{
    public class PathUtils
    {
        public const char SeparatorChar = '\\';
        public static readonly char[] InvalidPathChars = Path.GetInvalidPathChars();

        public static string Combine(params string[] paths)
        {
            var retval = string.Empty;
            if (paths != null && paths.Length > 0)
            {
                retval = paths[0]?.Replace(PageUtils.SeparatorChar, SeparatorChar).TrimEnd(SeparatorChar) ?? string.Empty;
                for (var i = 1; i < paths.Length; i++)
                {
                    var path = paths[i] != null ? paths[i].Replace(PageUtils.SeparatorChar, SeparatorChar).Trim(SeparatorChar) : string.Empty;
                    retval = Path.Combine(retval, path);
                }
            }
            return retval;
        }

        public static string GetCurrentFileNameWithoutExtension()
        {
            if (HttpContext.Current != null)
            {
                return Path.GetFileNameWithoutExtension(HttpContext.Current.Request.PhysicalPath);
            }
            return string.Empty;
        }

        /// <summary>
        /// 根据路径扩展名判断是否为文件夹路径
        /// </summary>
        /// <param name="path"></param>
        /// <returns></returns>
        public static bool IsDirectoryPath(string path)
        {
            var retval = false;
            if (!string.IsNullOrEmpty(path))
            {
                var ext = Path.GetExtension(path);
                if (string.IsNullOrEmpty(ext))		//path为文件路径
                {
                    retval = true;
                }
            }
            return retval;
        }

        public static bool IsEquals(string path1, string path2)
        {
            if (string.IsNullOrEmpty(path1) || string.IsNullOrEmpty(path2)) return false;
            return string.Equals(Path.GetFullPath(path1), Path.GetFullPath(path2), StringComparison.OrdinalIgnoreCase);
        }

        public static bool IsSystemPath(string path)
        {
            return DirectoryUtils.IsInDirectory(Combine(WebConfigUtils.PhysicalApplicationPath, DirectoryUtils.AspnetClient.DirectoryName), path)
                   || DirectoryUtils.IsInDirectory(Combine(WebConfigUtils.PhysicalApplicationPath, DirectoryUtils.Bin.DirectoryName), path)
                   || DirectoryUtils.IsInDirectory(Combine(WebConfigUtils.PhysicalApplicationPath, DirectoryUtils.SiteFiles.DirectoryName), path)
                   || DirectoryUtils.IsInDirectory(Combine(WebConfigUtils.PhysicalApplicationPath, WebConfigUtils.AdminDirectory), path)
                   || IsEquals(Combine(WebConfigUtils.PhysicalApplicationPath, "web.config"), path)
                   || IsEquals(Combine(WebConfigUtils.PhysicalApplicationPath, "Global.asax"), path);
        }

        public static string GetExtension(string path)
        {
            var retval = string.Empty;
            if (!string.IsNullOrEmpty(path))
            {
                path = PageUtils.RemoveQueryString(path);
                path = path.Trim('/', '\\').Trim();
                try
                {
                    retval = Path.GetExtension(path);
                }
                catch
                {
                    // ignored
                }
            }
            return retval;
        }

        public static string RemoveExtension(string fileName)
        {
            var retval = string.Empty;
            if (!string.IsNullOrEmpty(fileName))
            {
                var index = fileName.LastIndexOf('.');
                retval = index != -1 ? fileName.Substring(0, index) : fileName;
            }
            return retval;
        }

        public static string RemoveParentPath(string path)
        {
            var retval = string.Empty;
            if (!string.IsNullOrEmpty(path))
            {
                retval = path.Replace("../", string.Empty);
                retval = retval.Replace("./", string.Empty);
            }
            return retval;
        }

        public static string GetFileName(string filePath)
        {
            return Path.GetFileName(filePath);
        }

        public static string GetFileNameWithoutExtension(string filePath)
        {
            return Path.GetFileNameWithoutExtension(filePath);
        }

        public static string GetDirectoryName(string path, bool isFile)
        {
            if (string.IsNullOrWhiteSpace(path)) return string.Empty;

            if (isFile)
            {
                path = Path.GetDirectoryName(path);
            }
            if (!string.IsNullOrEmpty(path))
            {
                var directoryInfo = new DirectoryInfo(path);
                return directoryInfo.Name;
            }
            return string.Empty;
        }

        public static string GetDirectoryDifference(string rootDirectoryPath, string path)
        {
            var directoryPath = DirectoryUtils.GetDirectoryPath(path);
            if (!string.IsNullOrEmpty(directoryPath) && StringUtils.StartsWithIgnoreCase(directoryPath, rootDirectoryPath))
            {
                var retval = directoryPath.Substring(rootDirectoryPath.Length, directoryPath.Length - rootDirectoryPath.Length);
                return retval.Trim('/', '\\');
            }
            return string.Empty;
        }

        public static string GetPathDifference(string rootPath, string path)
        {
            if (!string.IsNullOrEmpty(path) && StringUtils.StartsWithIgnoreCase(path, rootPath))
            {
                var retval = path.Substring(rootPath.Length, path.Length - rootPath.Length);
                return retval.Trim('/', '\\');
            }
            return string.Empty;
        }

        public static string AddVirtualToPath(string path)
        {
            var resolvedPath = path;
            if (!string.IsNullOrEmpty(path))
            {
                path = path.Replace("../", string.Empty);
                if (!path.StartsWith("~"))
                {
                    resolvedPath = "~" + path;
                }
            }
            return resolvedPath;
        }

        public static string GetCurrentPagePath()
        {
            if (HttpContext.Current != null)
            {
                return HttpContext.Current.Request.PhysicalPath;
            }
            return string.Empty;
        }

        public static string GetSiteFilesPath(params string[] paths)
        {
            return MapPath(Combine("~/" + DirectoryUtils.SiteFiles.DirectoryName, Combine(paths)));
        }

        public static string GetBinDirectoryPath(string relatedPath)
        {
            relatedPath = RemoveParentPath(relatedPath);
            return Combine(WebConfigUtils.PhysicalApplicationPath, DirectoryUtils.Bin.DirectoryName, relatedPath);
        }

        public static string GetAdminDirectoryPath(string relatedPath)
        {
            relatedPath = RemoveParentPath(relatedPath);
            return Combine(WebConfigUtils.PhysicalApplicationPath, WebConfigUtils.AdminDirectory, relatedPath);
        }

        public static string PluginsPath => GetSiteFilesPath(DirectoryUtils.SiteFiles.Plugins);

        public static string GetPluginPath(string pluginId, params string[] paths)
        {
            return GetSiteFilesPath(DirectoryUtils.SiteFiles.Plugins, pluginId, Combine(paths));
        }

        public static string GetPluginNuspecPath(string pluginId)
        {
            return GetPluginPath(pluginId, pluginId + ".nuspec");
        }

        public static string GetPluginDllDirectoryPath(string pluginId)
        {
            var fileName = pluginId + ".dll";

            if (FileUtils.IsFileExists(GetPluginPath(pluginId, "Bin", fileName)))
            {
                return GetPluginPath(pluginId, "Bin");
            }
            if (FileUtils.IsFileExists(GetPluginPath(pluginId, "Bin", "Debug", fileName)))
            {
                return GetPluginPath(pluginId, "Bin", "Debug");
            }
            if (FileUtils.IsFileExists(GetPluginPath(pluginId, "Bin", "Release", fileName)))
            {
                return GetPluginPath(pluginId, "Bin", "Release");
            }
            
            return string.Empty;
        }

        public static string GetPackagesPath(params string[] paths)
        {
            return GetSiteFilesPath(DirectoryUtils.SiteFiles.Packages, Combine(paths));
        }

        public static string RemovePathInvalidChar(string filePath)
        {
            if (string.IsNullOrEmpty(filePath))
                return filePath;
            var invalidChars = new string(Path.GetInvalidPathChars());
            string invalidReStr = $"[{Regex.Escape(invalidChars)}]";
            return Regex.Replace(filePath, invalidReStr, "");
        }

        public static string MapPath(string virtualPath)
        {
            virtualPath = RemovePathInvalidChar(virtualPath);
            string retval;
            if (!string.IsNullOrEmpty(virtualPath))
            {
                if (virtualPath.StartsWith("~"))
                {
                    virtualPath = virtualPath.Substring(1);
                }
                virtualPath = PageUtils.Combine("~", virtualPath);
            }
            else
            {
                virtualPath = "~/";
            }
            if (HttpContext.Current != null)
            {
                retval = HttpContext.Current.Server.MapPath(virtualPath);
            }
            else
            {
                var rootPath = WebConfigUtils.PhysicalApplicationPath;

                virtualPath = !string.IsNullOrEmpty(virtualPath) ? virtualPath.Substring(2) : string.Empty;
                retval = Combine(rootPath, virtualPath);
            }

            if (retval == null) retval = string.Empty;
            return retval.Replace("/", "\\");
        }

        public static bool IsFileExtenstionAllowed(string sAllowedExt, string sExt)
        {
            if (sExt != null && sExt.StartsWith("."))
            {
                sExt = sExt.Substring(1, sExt.Length - 1);
            }
            sAllowedExt = sAllowedExt.Replace("|", ",");
            var aExt = sAllowedExt.Split(',');
            return aExt.Any(t => StringUtils.EqualsIgnoreCase(sExt, t));
        }

        public static bool IsFileExtenstionNotAllowed(string sNotAllowedExt, string sExt)
        {
            if (sExt != null && sExt.StartsWith("."))
            {
                sExt = sExt.Substring(1, sExt.Length - 1);
            }
            sNotAllowedExt = sNotAllowedExt.Replace("|", ",");
            var aExt = sNotAllowedExt.Split(',');
            return aExt.All(t => !StringUtils.EqualsIgnoreCase(sExt, t));
        }

        public static string GetTemporaryFilesPath(string relatedPath)
        {
            return Combine(WebConfigUtils.PhysicalApplicationPath, DirectoryUtils.SiteFiles.DirectoryName, DirectoryUtils.SiteFiles.TemporaryFiles, relatedPath);
        }

        public static string GetMenusPath(params string[] paths)
        {
            return Combine(SiteServerAssets.GetPath("menus"), Combine(paths));
        }

        public static string PhysicalSiteServerPath => Combine(WebConfigUtils.PhysicalApplicationPath, WebConfigUtils.AdminDirectory);

        public static string PhysicalSiteFilesPath => Combine(WebConfigUtils.PhysicalApplicationPath, DirectoryUtils.SiteFiles.DirectoryName);
    }
}